Parametric study and analytical characterization of the bolt–column (BC) joint for single-layer reticulated structures

Analysis and comparison on the mechanical behaviors of original bolt-column (OBC) joint and improved bolt-column (IBC) joint

“…Under pure bending applied to the end of the member, the moment-rotation curve and failure mode are determined, and comparison with those from Ref. [13] is shown in Figure 5. It can be observed that there is only slight deviation between the two moment-rotation curves, and that the joint primarily fails due to the formation of plastic hinge on the side plate, which aligns with experimental results.…”

“…Particularly, in order to address the issue of insufficient stiffness in joints, Ma et al 13,14 proposed a novel bolt-column joint system known as the semi-rigid joint. They conducted a comprehensive series of experimental and numerical tests to investigate the mechanical performance and failure mode of this joint under various geometric parameters and loading conditions.…”

Intelligent Tensioning Method for Prestressed Cables Based on Digital Twins and Artificial Intelligence

“…It is difficult to ensure the accuracy of cable tensioning, and the tensioning safety risk control and degree of intelligence for structural damage assessment are low. Structural quality is a decisive factor in ensuring the safety performance of large-span spatial structures, and it is also the focus of strict control over the entire cable tensioning process [31]. Structural safety assessments are important measures to ensure the quality of spatial structures.…”

Theoretical analysis and model manufacturing of innovative mortise and tenon hollow spherical joint

“…Table 1 lists some representative types of prefabricated joints, which can be divided into the following categories based on the different forms of the joint center body: central spherical type (Table 1(a, b)), circular plate type (Table 1(c)), and central cylinder type (Table 1(d–l)). 11 –18…”

“…Table 1 lists some representative types of prefabricated joints, which can be divided into the following categories based on the different forms of the joint center body: central spherical type (Table 1(a, b)), circular plate type (Table 1(c)), and central cylinder type (Table 1(d-l)). [11][12][13][14][15][16][17][18] Among the aforementioned joints, one of the most widely used connection systems is the central spherical joint, comprised of steel balls, high-strength bolts, and conical heads, such as the Mero KK joint and Socket joint. However, central spherical joints exhibit two limitations: (1) the members are usually connected to the spherical joint using only one high-strength bolt.…”